From b9890b578d8bcdb0d0a9c12ba3901b4e34514286 Mon Sep 17 00:00:00 2001
From: Toby Vincent <tobyv13@gmail.com>
Date: Sat, 18 Mar 2023 19:01:16 -0500
Subject: feat: impl history file and sorting

---
 src/lib.rs | 51 ++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 44 insertions(+), 7 deletions(-)

(limited to 'src/lib.rs')

diff --git a/src/lib.rs b/src/lib.rs
index d465d78..8d33eac 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,13 +1,50 @@
+use std::{collections::HashMap, fmt::Display, iter::IntoIterator};
+
+use serde::Deserialize;
+
 pub use config::Config;
+pub use history::History;
+pub use tmux::Tmux;
+
+mod config;
+mod history;
+mod tmux;
+
+pub type Timestamp = Option<u64>;
+
+pub trait SessionSource {
+    type Error: std::error::Error;
 
-mod config {
-    use clap::Parser;
+    type Iter: IntoIterator<Item = Session>;
 
-    #[derive(Debug, Clone, Parser)]
-    pub struct Config {
-        pub target: Option<String>,
+    fn sessions(&self) -> Result<Self::Iter, Self::Error>;
+
+    fn update(
+        &self,
+        mut hash_map: HashMap<String, Timestamp>,
+    ) -> Result<HashMap<String, Timestamp>, Self::Error> {
+        for session in self.sessions()? {
+            hash_map
+                .entry(session.name)
+                .and_modify(|o| {
+                    if let Some(timestamp) = session.timestamp {
+                        *o = o.map(|t| timestamp.max(t));
+                    }
+                })
+                .or_insert(session.timestamp);
+        }
+        Ok(hash_map)
+    }
+}
+
+#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Deserialize)]
+pub struct Session {
+    pub timestamp: Timestamp,
+    pub name: String,
+}
 
-        #[arg(short, long)]
-        pub list: bool,
+impl Display for Session {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{}", self.name)
     }
 }
-- 
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